It's Halloween and Garfield has dressed up as Catzilla, a fierce wild cat, to go out trick or treating. But what he doesn't know is that the real Catzilla has escaped from the zoo, and police are looking for him, leading to a wild case of mistaken identity! Will Garfield end up in a zoo, and will Jon and Odie be trapped with the real Catzilla? Also featuring the stories "Underwater World" and "Perfect Pizza."